I've been running one in the front of a mini axle, with 5.29's, RCV shafts, 37" pitbulls for about 4 years with no problems. I have 4 more, 2 4.30's and 2 4.11's and an elocker rear housing. I'm thinking about swapping in the 4.11's front and rear. Everyone keeps telling me they're junk but i haven't had any problems and no one can really tell me why they're junk. My truck gets abused.